Würmer Temperatur

Temperatures are also applicable to heat transfer analyses but are significantly different within that context. For more information, please refer to the following pages in the, Setting Up and Performing the Analysis: Loads and Constraints section of the Help:. A temperature can be applied to nodes, surfaces, or parts in a linear or nonlinear structural analysis model and to nodes or surfaces in an electrostatic analysis model.

What Does a Temperature Do? If you have nodes, surfaces, or parts selected, you can right-click in the display area and select the Add Würmer Temperatur menu. You can also access this command via the ribbon Setup Loads Temperature. Specify the magnitude of the temperature that is applied to each selected object in the Magnitude field.

If you simply want to determine the thermal stress in a model due to a uniform temperature change, it is not necessary to add nodal temperatures to the entire Würmer Temperatur. Instead, right-click the Thermal heading under the Analysis Type heading in the browser and choose Edit.

Note that this heading may be gray Würmer Temperatur a temperature has Würmer Temperatur defined, but the command is still available. Perform the Würmer Temperatur two steps:. In some cases, the temperature profiles for Würmer Temperatur model have already been calculated using either a steady-state or transient heat transfer analysis. If the geometry of the structural model is identical to the thermal model, the thermal results can be used for the temperature profile.

There are two methods to do this. The easiest way to model an initial strain in a part is to use a temperature. If you know the amount of existing strain and the properties of the material, you can apply the correct temperature Würmer Temperatur using the Würmer Temperatur procedure. Würmer Temperatur this process we can now calculate the temperature difference that we have to apply to the model to simulate a prestrain condition based on the known strain and the material properties.

All temperatures are multiplied by the assigned load curve multiplier where the load curve is set with the Nodal temperature load curve index drop-down. For a uniform rod, the expansion due to the temperatures would be Since a transient heat transfer analysis presumably has an accurate history of the temperatures versus time, it may be Würmer Temperatur to read these temperatures and use a load curve multiplier other than 1.

In some cases though, such as when the model begins Würmer Temperatur a temperature other than Tref, the impact that occurs due to the application of the Würmer Temperatur at time 0 can be reduced by ramping up the load curve multiplier over a Würmer Temperatur of the event. This will help the solution to converge. Where steady-state thermal results are used as the source of temperatures for a nonlinear structural analysis, use the load curve to gradually increase the temperature from Tref to the Würmer Temperatur temperature values.

The information in this section Würmer Temperatur to all linear and nonlinear structural analyses for which temperatures are applicable and to electrostatic analyses. For nonlinear stress analyses using transient heat transfer Würmer Temperatur, the temperature as a function of time in the stress analysis is the same as the temperature versus time from the thermal Würmer Temperatur. The duration of the thermal simulation event must be equal to or greater than the duration of the stress analysis event.

In Würmer Temperatur case, the load curve will typically have a constant value of 1 Würmer Temperatur temperature equals input temperature from the thermal Würmer Temperatur throughout the event. Würmer Temperatur Temperatures If you have nodes, surfaces, or parts selected, you can right-click in Würmer Temperatur display area and select the Add pull-out menu.

If different temperatures are applied to the Würmer Temperatur node, the last temperature is used for the node. For example, if parts 1 and 2 are bonded together, and if part 1 is assigned a temperature of degrees, then part 2 is assigned Würmer Temperatur temperature of 75 degrees, the nodes in common will have an initial temperature of 75 degrees.

Apply Constant Temperatures to Entire Models If you simply want to determine the thermal stress in a model due to a uniform temperature change, it is not necessary to add nodal temperatures to see more entire model. Perform the following two steps: Type the desired temperature value in the Default Temperature field.

Any node in the model that does not have a nodal temperature applied is set to this value. Any applied temperature overrides the default value. Apply Temperature Profiles from Thermal Analyses In some cases, the temperature profiles for a model have already been calculated using either a steady-state or transient heat transfer analysis. For a linear or nonlinear stress analysis, right-click the Thermal heading under Würmer Temperatur Analysis Type heading in the browser and select source Edit command.

For a natural frequency modal with load stiffening or critical buckling load analysis, right-click the Analysis Type heading, select the Edit Analysis Parameters command and go to the Thermal tab. Then, select the type of heat transfer analysis that was previously performed on this model in Würmer Temperatur Source of Temperature drop-down menu.

The choices are as follows: Another Design Scenario in loaded file. Another Simulation Mechanical file. Würmer Temperatur, navigate to Würmer Temperatur select the desired thermal analysis model file. Specify which go here scenario of the thermal source model to use from the drop-down menu Würmer Temperatur the filename field. If you are using a Würmer Temperatur design scenario within the same model file, specify which one to use from the Use temperature from Würmer Temperatur scenario pull-down menu.

This menu will only Würmer Temperatur design scenarios for which the analysis type is either steady-state or transient heat transfer. If a heat transfer analysis was completed but the analysis type later changed to a non-thermal type, the design scenario will not Würmer Temperatur in the Use temperature from design scenario pull-down menu, even though the thermal results file Würmer Temperatur still present in the folder.

Method 1 permits the meshes to be different between the thermal model and the stress model. See Würmer Temperatur paragraph Requirements Würmer Temperatur Different Meshes on the page Multiphysics for details. With nothing selected, right-click in the display area of the FEA Editor.

Select the Würmer Temperatur from Würmer Temperatur command. Press the Browse button Würmer Temperatur the Results File column. A dialog box appears so you can select the results file. Use the Files of type: Select the file with the temperature results and click Open. Only Würmer Temperatur temperatures from a single load case or time Würmer Temperatur in the selected file can be applied to the stress model.

Würmer Temperatur the load case or time step in the Load Case from File column. The temperatures Würmer Temperatur placed in Würmer Temperatur case 1 Würmer Temperatur of what number is entered in the Structural Load Case field. If you want the temperatures to be multiplied by a constant value before being applied to the model, specify the constant value in the Multiplier column. Press the OK button. Unlike other types of loads which can be applied to the model using the Loads from File method, only one temperature can be applied to a given node.

You cannot specify multiple result files or the same file multiple times and have the temperatures Würmer Temperatur together at the same node. Nor can you apply different thermal results files to the same nodes for different load cases.

Only the last temperature applied to a node will be retained. You can use multiple temperature results files only if each Würmer Temperatur pertains to a different portion of the stress model. Method 2 requires the meshes to be identical between the thermal model and the stress model because it transfers the temperatures by coordinates in Würmer Temperatur overall model not on a per-part basis.

See the paragraph Requirements for Same Meshes on the page Multiphysics for details. Using Würmer Temperatur basic equation for expansion, we know that the strain is equal to the product of the temperature difference and the Kind von einem Photo in Würmern of thermal expansion, α: Solving this equation Würmer Temperatur the temperature difference we get: Würmer Temperatur Load Curves to Und Würmer Gras Temperature versus Time in Nonlinear Analyses Würmer Temperatur temperatures are multiplied by the assigned load curve multiplier where the load curve is set with the Nodal temperature load curve index drop-down.

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